218 
PACIFIC SCIENCE, Vol. V, July, 1951 
minalia without a tergal subapical 
scale tuft; (latero-dorsal margins of 
abdominal tergites II-IV of female 
dark-scaled, or with yellow scaling 
present as spots or irregular marks 
only, not as longitudinal markings; 
ppn with few or no black scales) . . . 
(Fmlaya) croceus 
Proboscis with a patch of apico- 
ventral dark scales; basistyle with a 
tergal subapical elongate scale tuft, 
in addition to the usual inner me- 
dian sternally projecting tuft 38 
38. Proboscis of male largely dark-scaled 
laterally and ventrally, except for a 
median pale band; subapical scale 
tuft of basistyle dusky; latero-dorsal 
margins of abdominal tergites II- 
IV of female with yellow scaling 
present as spots or irregular marks 
only (Fmlaya) medleri 
Proboscis of male with considerable 
pale scaling laterally and ventrally; 
subapical scale tuft of basistyle 
largely pale yellow; latero-dorsal 
margins of abdominal tergites II- 
IV of female with longitudinal 
streaks of yellow scaling 
(Fmlaya) flavipennis 
39. Lateral scutellar lobes covered with 
broad scales, these white except for 
a few apical dark ones; segment I of 
fore tarsus with some basal white 
scales (Fmlaya) poicilius 
Lateral scutellar lobes with narrow- 
curved yellowish scales; segment I 
of fore tarsus without basal white 
scales (Fmlaya) ananae 
40. Scutum marked with a pattern of 
several (3-5) narrow longitudinal 
white or yellow lines, one of the 
lines being median in position. ... 41 
Scutum not marked with a pattern of 
3-5 narrow longitudinal pale lines . 47 
41. Tarsi all dark except for a small baso- 
lateral white patch on hind tarsal I 
(Stegomyia) aurotaeniatus 
Hind tarsi with basal white bands on 
at least first 3 segments 42 
42. Postspiracular area not scaled; (hind 
tarsus with basal and apical bands 
on I-III, a basal band on IV, V 
dark or else pale above) 
(^Fmlaya) aureostriatus 
Postspiracular area scaled 43 
43. Hind tarsi with basal and apical white 
bands on I-IV, V all white dorsally; 
mid femora with a conspicuous 
longitudinal median white line an- 
teriorly (Finlay a) hanksi 
Hind tarsi with basal white bands on 
I-III (rarely also on IV), V all dark; 
mid femora without an anterior 
median line 44 
44. Scutum with median longitudinal pale 
line forked posteriorly at the pre- 
scutellar bare space . . (fmlaya) saxicola 
Scutum with median longitudinal pale 
line not forked posteriorly 45 
45. Hind tarsi with the first 4 segments 
with basal white scaling 
(Fmlaya) sherkt 
Hind tarsi with only the first 3 seg- 
ments with basal white scaling .... 46^ 
46. Prealar scale patch continuous with 
the upper sternopleural scale patch 
(Fmlaya) jugraensis 
Prealar scale patch distinctly separated 
from the upper sternopleural scale 
patch (Fmlaya) abadsantosP 
(Fmlaya) hurgosP 
47. Scutellum with only narrow and 
narrow-curved scales 48 
Scutellum mostly or entirely broad- 
scaled 51 
48. Scutum with considerable areas of 
white scaling; vertex dorsum largely 
broad-scaled; (hind tarsal segments 
III-V dark) .... (Fmlaya) melanopterus 
Scutum not white-scaled; vertex dor- 
sum largely narrow-scaled 49 
49. Hind femur anteriorly pale except for 
a dark apical portion and along the 
dorsal margin; proboscis dark- 
scaled; paratergite of female not 
scaled (Banksinella) imprimens 
Hind femur anteriorly speckled with 
pale scaling; proboscis with evident 
®Since the type description of rizali (Banks) is in- 
complete on a number of points, it has been impossi- 
ble to take it beyond this point in the key. 
■^Separable only on male and larval characters. 
